A: We really need to talk about this matter.
A：我们真的需要谈谈这件事。

B: Do you mean we should have a heart-to-heart?
B：你是说我们需要进行一次交心谈话吗？

1) 坦诚相见

2) 谈心

3) 走心的交流

1. 坦诚的谈话；交心谈话

noun / adjective

1. A conversation in which people are very honest and talk about their feelings.
An honest and sincere conversation.

Synonym: candid, sincere, frank